Fix/remove moire patterns from scanned images.

[Eli]

Hello community!

Is there an effect or a better way to reduce the moire patterns from scanned images?

 

 

So far I have tried using  "Surface blur" followed by  "Sharpen +" and seems to work but if there is a tool or you know better ways to remove the moire l would like to hear.  Thanks!

 

[AndrewDavid]

Hi @Eli

 

Median would be my choice - with a large amount of patience depending on how good you would like the finished product.

 

Edited August 25, 2021 by AndrewDavid
Removed upload

[Eli]

41 minutes ago, AndrewDavid said:

Median would be my choice - with a large amount of patience depending on how good you would like the finished product

Thanks AndrewDavid, I thought about selecting small areas and using some type of blur but as you said it takes patience. I also want to keep the dark outlines as dark as possible that is why I used "Sharpen +".

[dipstick]

You can duplicate the layer and apply Gaussian blur to top layer, then change blending mode to overlay:

 

 

Alternatively you can resize up 200%, followed by resize down 50%:

 

 

[Eli]

29 minutes ago, dipstick said:

 

Alternatively you can resize up 200%, followed by resize down 50%:

I did not think about this.